The coherent propagation phenomenon of incoherent light through a resonant medium was experimentally demonstrated in the subpicosecond time region, using Na atoms and the light from an imperfectly mode-locked cw dye laser. The coherence spike with a 0.35-psec width in the cross-correlation profile between the propagated incoherent light and the initial light develops the same specific oscillatory structure as seen in the propagation of a weak coherent subpicosecond pulse. A theoretical analysis was also performed, and the experimental results are in considerably good agreement with the calculated ones.
© 1986 Optical Society of America
Norio Morita, Kenji Torizuka, and Tatsuo Yajima, "Coherent propagation effect of incoherent light," J. Opt. Soc. Am. B 3, 548-553 (1986)